Hi! For a 6 floor business office building considered as light hazard occupancy, and the minimum sprinkler discharge density 0.1 gpm/ft2, that the fire pump is located in the basement, in order to adjust flow rate of sprinklers not to be very high at each floor, what strategy is usually considered? Is it common to use different K factor sprinklers in each floor? like the below: Lets say the pump is 30Gpm at 70Psi and consider the below: - Pressure at 1st floor= 60 psi ---- I choose a sprinkler with K=2.8 to have Q=21.7Gpm - Pressure at 2nd floor= 50 psi ---- I choose a sprinkler with K=4.2 to have Q=29.7Gpm - Pressure at 3rd floor= 40 psi ---- I choose a sprinkler with K=4.2 to have Q=26.7Gpm - Pressure at 4th floor= 30 psi ---- I choose a sprinkler with K=4.2 to have Q=23Gpm - Pressure at 5th floor= 20 psi ---- I choose a sprinkler with K=5.6 to have Q=25Gpm - Pressure at 6th floor= 10 psi ---- I choose a sprinkler with K=8 to have Q=25.3Gpm
The above numbers are theoretical, I just would like to know if it is common to change the K factor at each floor to adjust flow rate? Or may be a pressure regulated valve is better to use at each floor instead of different K factor? Ps. I have considered to use quick response sprinklers. Thanks! Reza www.sarian.ir ________________________________ From: "[email protected]" <[email protected]> To: [email protected] Sent: Tuesday, August 13, 2013 5:24 AM Subject: Re: Sleep on it! Do they stock those foam "dorm" quality mattresses? How many and how stored? I think a lot of places don't. If they do, they ignite easy, and burn fast and hot. Burn a single one on edge. The fire is essentially over in a minute, with just a small residual flame from remnant puddle. Temporarily solidified petrochemicals. bv ----- Original Message ----- From: "Charles Thurston" <[email protected]> To: "Vince Sabolik" <[email protected]> Sent: Monday, August 12, 2013 3:07:02 PM Subject: Re: Sleep on it! Hello Vince, Just did one a few months back in a strip center. I will try to remember when I get to the office tomorrow and see what it was. Monday, August 12, 2013, 5:58:24 PM, you wrote: > Hey forum -- > Has anyone done a design for a small retail mattress store? > Would Class III, Group A really apply? Not really storage... > Thanks! > Vince Sabolik, West Tech Fire Protection, Inc. > 11351 Pearl Road / Strongsville, Ohio 44136 440 > 238-4800 Fax 440 238-4876 > ____________________________________________________________________ > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org -- Best regards, Charles mailto:[email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
